Doping effect on transport properties of layered oxysulfide Sr 2Cu2CoO2S2 with CoO2 square planes

Satoshi Okada, Hirotaka Okabe, Masanori Matoba

研究成果: Article査読

抄録

Layered cobalt oxysulfide Sr2Cu2CoO2S 2 crystallizes in an unusual intergrowth structure which represents a combination of SrCu2S2 and SrCoO2. Sr 2Cu2CoO2S2 is a p-type antiferromagnetic semiconductor with TN(= 200 K). And below T t(= 125 K), the antiferromagnetic nature is changed from 2D to 3D. We studied Seebeck coefficient of Sr2Cu2CoO 2S2 and its Cu-doped compounds. Their Seebeck coefficients near T, tend to enhance by the Cu-doping into CoO2 square planes. The curves of the temperature dependence of Sr2Cu 2CuxCo1-xO2S2 is changed near TN, and the change points shift to high temperature by Cu-doping. The behavior resembles in TN shift of the magnetic property. The transport properties of Cu-doped Sr2Cu 2CoO2S2 is affected by their magnetism.

本文言語English
ページ(範囲)916-917
ページ数2
ジャーナルPhysica B: Condensed Matter
329-333
II
DOI
出版ステータスPublished - 2003 5

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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「Doping effect on transport properties of layered oxysulfide Sr <sub>2</sub>Cu<sub>2</sub>CoO<sub>2</sub>S<sub>2</sub> with CoO<sub>2</sub> square planes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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